AT 1 and AT 2 were late convoys from Ancona to Trieste in June 1945.
The next series beginning with AT.1 (designated by ’/M’ by Hague but with very limited data) departed Alexandria on 30 November 1941. This Mediterranean series ended on 18 April 1942 with AT.49. The final series started with AT.10 departing New York City
15 January 1942 with large troopships and ended with AT.223 at the Clyde on 31 July 1945. Some confusion may arise because the transAtlantic convoys carried the same numbers as the Mediterranean convoys.
Note that the following convoys were cancelled.